body{
	font-family: "微软雅黑","Microsoft YaHei";
	/* background :#eee; */
	display: block;
	background: url('../images/bg.png');
}
span.jumbo {
	font-size:2em;
	margin:0;
	color:#4d63bc;
}
.navbar-default {
	display: block;
	background: url('../images/bg.png');
}